Q: Is 19,078,542 a Composite Number?

Why is 19,078,542 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 19,078,542 can be evenly divided by 1 2 3 6 7 9 14 18 21 42 49 63 97 98 126 147 194 223 291 294 441 446 582 669 679 873 882 1,338 1,358 1,561 1,746 2,007 2,037 3,122 4,014 4,074 4,683 4,753 6,111 9,366 9,506 10,927 12,222 14,049 14,259 21,631 21,854 28,098 28,518 32,781 42,777 43,262 64,893 65,562 85,554 98,343 129,786 151,417 194,679 196,686 302,834 389,358 454,251 908,502 1,059,919 1,362,753 2,119,838 2,725,506 3,179,757 6,359,514 9,539,271 and 19,078,542, with no remainder.

Since 19,078,542 cannot be divided by just 1 and 19,078,542, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).